How dose the user interaction flow break ?

Question

Main objective is to upload the screen capture to the Amazon S3 fully on client side. Here is the workflow I need
User click a button to process all the workflow described below .
1. Do the AMF request to backend and retrieve the S3 policy file information.
2. Once the result comeback need to upload the screen capture of the image+ parent movieclip.
3. After the image successfully loaded need to popup the html page .
Second step not initiate and throws a security Error. The security restriction describe here:
http://kb2.adobe.com/cps/405/kb405546.html
What I want understand is, how dose the above workflow break user interaction event flow?
Can I do the following way.?  dose this break the user interaction for upload data
myButton.addEventListener(MouseEvent.CLICK,onClick)
function onClick(event:MouseEvent):void
         var myTimer:Timer = new Timer(1000, 1);
    myTimer.addEventListener("timer", timerHandler);
    myTimer.start();
public function timerHandler(event:TimerEvent):void
   //stuff to upload the image data with URLLoader 
Thanks in advance

Answer 1

You are trying to wait for an async event.  You are no longer doing the work
in the event handler.